public static void Run()
{
// ExStart:ChangeFilePassword
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdfFacades_SecuritySignatures();
// Create PdfFileSecurity object
PdfFileSecurity fileSecurity = new PdfFileSecurity();
fileSecurity.BindPdf(dataDir + "ChangePassword.pdf");
// Change password
fileSecurity.ChangePassword("owner", "newuserpassword", "newownerpassword");
fileSecurity.Save(dataDir + "ChangeFilePassword_out.pdf");
// ExEnd:ChangeFilePassword
}
}